A very well researched documentary on the plausible theory of how the sun effects climate change rather than CO2. For me, this kind of thinking is quite important. Irrespective of which theory is right we have to look at creating a better environment, diversifying our energy sources as a goal of national security, having a cleaner environment, and working towards managing the effect of climate change on the Earth.
However, what we should not do is let governments create carbon tax or carbon trading legislation which provides a lot more power in the hands of the government, more legislation and regulation and more chances to make mistake. Also, it provides more tax dollars to create special interest groups, for transfer of payments to influence voting and other ill effects of being part of a democracy.